void main() {
	Child c = new Child();
	c.m1(12);
}
class Parent {
	String msg = "message variable from the parent class";
	void m1(int a){ print("value of a ${a}");}
}
class Child extends Parent {
	@override
	void m1(int b) {
		print("value of b ${b}");

		super.m1(13);

		print("${super.msg}")   ;
	}
}